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Home >> Toyota >> 2017 >> Avalon XLE >> Repair and Diagnosis >> Electrical >> Gauges >> Meter / Gauge System - Diagnostic Codes & Symptom Tests - (Except Hybrid) >> Meter / Gauge System >> DTC B1507: Open in Turn Signal Circuit; DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [10/2014 - ] >> Procedure

DTC B1507: Open in Turn Signal Circuit; DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [10/2014 - ]: Procedure

  1. INSPECT LIGHTS 
    1. Inspect the illumination of each turn signal light.

      Result

      Result Proceed to
      Turn signal lights for one side do not illuminate. A
      Front turn signal light does not illuminate. B
      Rear turn signal light does not illuminate. C
      Side turn signal light does not illuminate (w/ Seat Position Memory). D
      Side turn signal light does not illuminate (w/o Seat Position Memory). E

    Result: 

    B 

    See step  4

    Result: 

    C 

    See step  6

    Result: 

    D 

    See step  8

    Result: 

    E 

    See step  11

    Result: 

    A 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) 
    1. Disconnect the D8 combination meter assembly connector.
    2. Disconnect the 3A instrument panel junction block assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)

      FOR LH

      Tester Connection Condition Specified Condition
      D8-7 (LL) - 3A-20 Always Below 1 Ω
      FOR RH

      Tester Connection Condition Specified Condition
      D8-13 (LR) - 3A-37 Always Below 1 Ω

      Standard Resistance (Check for Short)

      FOR LH

      Tester Connection Condition Specified Condition
      D8-7 (LL) - Body ground Always 10 kΩ or higher
      FOR RH

      Tester Connection Condition Specified Condition
      D8-13 (LR) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly (Refer to REMOVAL [10/2014 - ] ).
      GTY549374Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      for LH 

      Tester Connection Condition Specified Condition
      3A-20 - 3D-10 Always Below 1 Ω
      3A-20 - 3C-22 Always Below 1 Ω
      3A-20 - 3A-40 Always Below 1 Ω

      for RH 

      Tester Connection Condition Specified Condition
      3A-37 - 3D-5 Always Below 1 Ω
      3A-37 - 3C-19 Always Below 1 Ω
      3A-37 - 3B-32 Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Instrument Panel Junction Block Assembly)      		 - -

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    NG 

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

  4. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) 
    1. Disconnect the A16*1 or A43*2 headlight assembly connector.
      • *1: for LH
      • *2: for RH
    2. Disconnect the 3D instrument panel junction block assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)

      FOR LH

      Tester Connection Condition Specified Condition
      A16-1 - 3D-10 Always Below 1 Ω
      A16-3 - Body ground Always Below 1 Ω
      FOR RH

      Tester Connection Condition Specified Condition
      A43-1 - 3D-5 Always Below 1 Ω
      A43-3 - Body ground Always Below 1 Ω

      Standard Resistance (Check for Short)

      FOR LH

      Tester Connection Condition Specified Condition
      A16-1 - Body ground Always 10 kΩ or higher
      FOR RH

      Tester Connection Condition Specified Condition
      A43-1 - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  5

  5. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly (Refer to REMOVAL [10/2014 - ] ).
      GTY544634Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      for LH 

      Tester Connection Condition Specified Condition
      3A-20 - 3D-10 Always Below 1 Ω

      for RH 

      Tester Connection Condition Specified Condition
      3A-37 - 3D-5 Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Instrument Panel Junction Block Assembly)      		 - -

    Result: 

    OK 

    REPLACE HEADLIGHT ASSEMBLY 

    (Refer to REMOVAL [10/2014 - 10/2015] Refer to REMOVAL [10/2015 - ] )

    Result: 

    NG 

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

  6. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) 
    1. Disconnect the O9*1 or O13*2 rear combination light assembly connector.
      • *1: for LH
      • *2: for RH
    2. Disconnect the 3C instrument panel junction block assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)

      FOR LH

      Tester Connection Condition Specified Condition
      O9-3 (TRN) - 3C-22 Always Below 1 Ω
      O9-4 (E) - Body ground Always Below 1 Ω
      FOR RH

      Tester Connection Condition Specified Condition
      O13-3 (TRN) - 3C-19 Always Below 1 Ω
      O13-4 (E) - Body ground Always Below 1 Ω

      Standard Resistance (Check for Short)

      FOR LH

      Tester Connection Condition Specified Condition
      O9-3 (TRN) - Body ground Always 10 kΩ or higher
      FOR RH

      Tester Connection Condition Specified Condition
      O13-3 (TRN) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  7

  7. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly (Refer to REMOVAL [10/2014 - ] ).
      GTY545654Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      for LH 

      Tester Connection Condition Specified Condition
      3A-20 - 3C-22 Always Below 1 Ω

      for RH 

      Tester Connection Condition Specified Condition
      3A-37 - 3C-19 Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Instrument Panel Junction Block Assembly)      		 - -

    Result: 

    OK 

    REPLACE REAR COMBINATION LIGHT ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    NG 

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

  8. CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) 
    1. Disconnect the G12*1 or F10*2 outer mirror control ECU assembly connector.
      • *1: for LH
      • *2: for RH
    2. Disconnect the 3A*1 or 3B*2 instrument panel junction block assembly connector.
      • *1: for LH
      • *2: for RH
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)

      FOR LH

      Tester Connection Condition Specified Condition
      G12-11 (TRNI) - 3A-40 Always Below 1 Ω
      FOR RH

      Tester Connection Condition Specified Condition
      F10-11 (TRNI) - 3B-32 Always Below 1 Ω

      Standard Resistance (Check for Short)

      FOR LH

      Tester Connection Condition Specified Condition
      G12-11 (TRNI) - Body ground Always 10 kΩ or higher
      FOR RH

      Tester Connection Condition Specified Condition
      F10-11 (TRNI) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  9

  9. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly (Refer to REMOVAL [10/2014 - ] ).
      GTY540520Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      for LH 

      Tester Connection Condition Specified Condition
      3A-20 - 3A-40 Always Below 1 Ω

      for RH 

      Tester Connection Condition Specified Condition
      3A-37 - 3B-32 Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Instrument Panel Junction Block Assembly)      		 - -

    Result: 

    NG 

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    OK 

    See step  10

  10. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY 
    1. Remove the outer mirror control ECU assembly (Refer to REMOVAL [10/2014 - ] ).
    2. Recheck for DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).

      Result

      Result Proceed to
      DTCs are not output. A
      DTCs are output. B

    Result: 

    A 

    END 

    Result: 

    B 

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

  11. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) 
    1. Disconnect the G9*1 or F7*2 headlight assembly connector.
      • *1: for LH
      • *2: for RH
    2. Disconnect the 3A*1 or 3B*2 instrument panel junction block assembly connector.
      • *1: for LH
      • *2: for RH
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)

      FOR LH

      Tester Connection Condition Specified Condition
      G9-4 (B) - 3A-40 Always Below 1 Ω
      G9-5 (-) - Body ground Always Below 1 Ω
      FOR RH

      Tester Connection Condition Specified Condition
      F7-4 (B) - 3B-32 Always Below 1 Ω
      F7-5 (-) - Body ground Always Below 1 Ω

      Standard Resistance (Check for Short)

      FOR LH

      Tester Connection Condition Specified Condition
      G9-4 (B) - Body ground Always 10 kΩ or higher
      FOR RH

      Tester Connection Condition Specified Condition
      F7-4 (B) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  12

  12. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly (Refer to REMOVAL [10/2014 - ] ).
      GTY540520Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      for LH 

      Tester Connection Condition Specified Condition
      3A-20 - 3A-40 Always Below 1 Ω

      for RH 

      Tester Connection Condition Specified Condition
      3A-37 - 3B-32 Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Instrument Panel Junction Block Assembly)      		 - -

    Result: 

    OK 

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    NG 

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

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